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repulía: SAURIA: TEIIDAE 



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TRETIOSCINCUS 



TRETIOSCINCUS Cope 



1862 Tret i ose i ncus Cope, Proc. Acad. Nat. Se!. Phila., 1862; 184. Type-spec Íes: Tret iose ineus 



castan icterus Cope. 

 1516 Cali i se i neopus Ruthven, Oce. Pap. Mus. Zool. Univ. Mich., 22: 1. Type-species: Call i se i ncopus 



aq i 1 i s Ruthven. 



Distribution: Northern South America; Colombia to Amazonian Brazil including Venezuela and Guianas; 

 offshore islands along northern coast. 



Content: Two species. 



Key to the species 



Clave de especies 



1. Dorsal scales keeled b i fase iatus 1. Escamas dorsales carenadas b i fase iatus 



Dorsal scales smooth aq i 1 i s Escamas dorsales lisas aq i 1 is 



TRETIOSCINCUS AGILIS (Ruthven) 



1516 Cali i se i neopus aq i 1 i s Ruthven, Oce. Pap. Mus. Zool. Univ. Mich., 22: 2. Type-locality: Sand 



ridges on Demerara River near Dunoon, Guyana. 

 I5I8 Tret i ose i ncus román i Andersson, Ark. for Zool., 11 (16): 5- Type-locality: Bosque Municipal, 



Manáus, Amazonas, Brazil. 

 1523 Tret iosc incus bras i 1 iens is Müller, Zool. Anz., 57= ^9- Type-loeal i ty : Lower Rio Toeantins, 



Para, Brazil. 

 1565 Tret iosc i ncus aqilis — Vanzolini and Reboujas-Sp i eker, Pap. Avul. Depto. Zool. Sao Paulo, 22 (iS): 



124, figs. 



Distribution: Guyana, Amazonian Brazil. 



TRETIOSCINCUS BIFASCIATüS (Ouméril) 



18S1 Heteropus Bifasciatus Dumeril. Cat. Mlth. Coll. Rept. Mus. Paris: 182. Type-locality: Río 



Magdalena valley, Colombia. 

 1864 Tretioseincus b i fase iatus — Cope. Proc. Acad. Nat. Sci. Phila., 1864: 22?. 



Distribution: Northern South America, Dutch Leeward Islands and Margarita Island, Venezuela. 



Key to the subspecies 



1. Light lateral stripes with distinct black 



border kuqler i 



Light lateral stripes lack distinct black 

 bordei b i fase iatus 



Clave de subespecies 



1. Cintas laterales claras eon un borde negro 



di st i nto kuqler i 



Cintas laterales clara sin borde negro 

 d i st i nto b i fase iatus 



Tret i ose i ncus b if ase iatus b 



1862 Tret iosc i ncus castan 



locality: Colombi 

 1947 Tret iose i ncus b i fase 



fase iatus (Duméril) 



cterus Cope, Proc. Acad. Nat. Sci. Phila., 1862: 184. Type- 



atus [ bifasciatus ]— Shreve. Bull. Mus. Comp. Zool., 5?: 527. 



Distribution: Caribbean Colombia. 



Tret i ose i ncus b if ase iatus kuqler i Shreve 



1947 Tretioseincus bifasciatus kuoleri Shreve. Bull. Mus. Comp. Zool., 99= 527- Type-loeal it y: 

 Pauj', Acosta, Estado Falcon, Venezuela. 



Distribution; Northern Venezuela, including Isla Margarita; Dutch Leeward Islands. 



